hi we have booked rome to florence for 2 people but our flight from lisbon has change so can i change rail tiket

hi

we have an email from ryan air saying that our flight from lisbon to rome has been change to much latter time because of this we wont be abel to make our train time table from rome to florence is their anyway you can help me in changing our train time table please. my email kimbalmarieke@gmail.com. thank you